Some of Trump’s rallies have drawn attention for protests — most notably the one at the University of Illinois in Chicago scheduled for Friday. When protesters in the arena heard that Trump had canceled the event, it sparked cheers by protesters while other fans yelled out for Trump, leading to some confrontations.

On Saturday, a protester nearly climbed on stage at a Trump event near the Dayton international Airport, prompting Secret Service to surround Trump. The man was arrested.

In West Boca, dozens of law enforcement officials from the Secret Service as well as dozens from the Palm Beach Sheriff’s Office provided security.

“We have a major presidential candidate that basically encourages people in the crowd to beat up on people that heckle and protest against him. That’s what’s happening, and don’t tell me that it’s not because it is. … The other day a guy sucker-punched somebody at one of his events,” Rubio said while campaigning in Tampa Bay Saturday.

The primary is on Tuesday but about two million Republican and Democratic voters have already cast ballots by mail or at early voting sites.

Polls have consistently showed Trump winning Florida’s winner take all 99 delegates which would be a blow to the campaign of Sen. Marco Rubio. A Real Clear Politics average of polls March 4-11 showed Trump leading Rubio by 18 points.

In the Democratic primary, polls consistently show Hillary Clinton beating Bernie Sanders by a landslide in Florida.